Package org.apache.cassandra.db.filter

Examples of org.apache.cassandra.db.filter.QueryFilter

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            throw ex;
        }

        SortedSet<ByteBuffer> cols = new TreeSet<ByteBuffer>(BytesType.instance);
        cols.add(CLUSTERNAME);
        QueryFilter filter = QueryFilter.getNamesFilter(decorate(LOCATION_KEY), new QueryPath(STATUS_CF), cols);
        ColumnFamilyStore cfs = table.getColumnFamilyStore(STATUS_CF);
        ColumnFamily cf = cfs.getColumnFamily(filter);

        if (cf == null)
        {
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    }

    public static Token getSavedToken()
    {
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getNamesFilter(decorate(LOCATION_KEY), new QueryPath(STATUS_CF), TOKEN);
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(filter);
        return cf == null ? null : StorageService.getPartitioner().getTokenFactory().fromByteArray(cf.getColumn(TOKEN).value());
    }
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    }

    public static int incrementAndGetGeneration() throws IOException
    {
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getNamesFilter(decorate(LOCATION_KEY), new QueryPath(STATUS_CF), GENERATION);
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(filter);

        int generation;
        if (cf == null)
        {
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    }

    public static BootstrapState getBootstrapState()
    {
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getNamesFilter(decorate(BOOTSTRAP_KEY),
                                                        new QueryPath(STATUS_CF),
                                                        BOOTSTRAP);
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(filter);
        if (cf == null)
            return BootstrapState.NEEDS_BOOTSTRAP;
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    }

    public static boolean isIndexBuilt(String table, String indexName)
    {
        ColumnFamilyStore cfs = Table.open(Table.SYSTEM_TABLE).getColumnFamilyStore(INDEX_CF);
        QueryFilter filter = QueryFilter.getNamesFilter(decorate(ByteBufferUtil.bytes(table)),
                                                        new QueryPath(INDEX_CF),
                                                        ByteBufferUtil.bytes(indexName));
        return ColumnFamilyStore.removeDeleted(cfs.getColumnFamily(filter), Integer.MAX_VALUE) != null;
    }
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     */
    public static NodeId getCurrentLocalNodeId()
    {
        ByteBuffer id = null;
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getIdentityFilter(decorate(CURRENT_LOCAL_NODE_ID_KEY),
                new QueryPath(NODE_ID_CF));
        ColumnFamily cf = table.getColumnFamilyStore(NODE_ID_CF).getColumnFamily(filter);
        if (cf != null)
        {
            // Even though gc_grace==0 on System table, we can have a race where we get back tombstones (see CASSANDRA-2824)
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    public static List<NodeId.NodeIdRecord> getOldLocalNodeIds()
    {
        List<NodeId.NodeIdRecord> l = new ArrayList<NodeId.NodeIdRecord>();

        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getIdentityFilter(decorate(ALL_LOCAL_NODE_ID_KEY),
                new QueryPath(NODE_ID_CF));
        ColumnFamily cf = table.getColumnFamilyStore(NODE_ID_CF).getColumnFamily(filter);

        NodeId previous = null;
        for (IColumn c : cf)
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            }

            // avoid changing the filter columns of the original filter
            // (reduceNameFilter removes columns that are known to be irrelevant)
            TreeSet<ByteBuffer> filterColumns = new TreeSet<ByteBuffer>(((NamesQueryFilter) filter.filter).columns);
            QueryFilter reducedFilter = new QueryFilter(filter.key, filter.path, new NamesQueryFilter(filterColumns));

            /* add the SSTables on disk */
            Collections.sort(view.sstables, SSTable.maxTimestampComparator);

            // read sorted sstables
            for (SSTableReader sstable : view.sstables)
            {
                long currentMaxTs = sstable.getMaxTimestamp();
                reduceNameFilter(reducedFilter, container, currentMaxTs);
                if (((NamesQueryFilter) reducedFilter.filter).columns.isEmpty())
                    break;

                IColumnIterator iter = reducedFilter.getSSTableColumnIterator(sstable);
                iterators.add(iter);
                if (iter.getColumnFamily() != null)
                {
                    container.delete(iter.getColumnFamily());
                    sstablesIterated++;
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    /** if hints become incompatible across versions of cassandra, that logic (and associated purging) is managed here. */
    private static void purgeIncompatibleHints() throws IOException
    {
        ByteBuffer upgradeMarker = ByteBufferUtil.bytes("Pre-1.0 hints purged");
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getNamesFilter(decorate(COOKIE_KEY), new QueryPath(STATUS_CF), upgradeMarker);
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(filter);
        if (cf != null)
        {
            logger.debug("Pre-1.0 hints already purged");
            return;
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    public static HashMap<Token, InetAddress> loadTokens()
    {
        HashMap<Token, InetAddress> tokenMap = new HashMap<Token, InetAddress>();
        IPartitioner p = StorageService.getPartitioner();
        Table table = Table.open(Table.SYSTEM_TABLE);
        QueryFilter filter = QueryFilter.getIdentityFilter(decorate(RING_KEY), new QueryPath(STATUS_CF));
        ColumnFamily cf = table.getColumnFamilyStore(STATUS_CF).getColumnFamily(filter);
        if (cf != null)
        {
            for (IColumn column : cf.getSortedColumns())
            {
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Related Classes of org.apache.cassandra.db.filter.QueryFilter

  • com.stratio.cassandra.index.RowServiceSkinny
  • com.stratio.cassandra.index.RowServiceWide
  • org.apache.cassandra.db.BatchlogManager
  • org.apache.cassandra.db.Cell
  • org.apache.cassandra.db.CollationController
  • org.apache.cassandra.db.CollationControllerTest
  • org.apache.cassandra.db.ColumnFamily
  • org.apache.cassandra.db.ColumnFamilyStore
  • org.apache.cassandra.db.ColumnFamilyStoreTest
  • org.apache.cassandra.db.columniterator.IdentityQueryFilter
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